Hello,
I bought an Siglent SDL1020X-E from Welectron.
But is seems to make some unexpected high pitch (16kHz) noises upon button presses sometimes
Always at ~16kHz, very annoying.
Sometimes for a fraction of a second, sometimes continuously until the next button press occurs.
Here's a video of it:
https://youtu.be/jKyPVK1_bkw (after cold start)
Second Video after the device has been running for 15-30 minutes.
https://youtu.be/AnLyCtdi098The long noise intervals are well visible on the waterfall chart, the short 16kHz chirps just show up as small dots.
It only happens on button press (or sometimes encoder wheel turn) when the key sound is on.
When the key sound is switched off in the menu it does not appear.
So I suspect that it's either the beeper hardware or software/button de-bouncing.
Software installed is latest 1.1.1.22R1
Phone App is Specdroid (db levels are relative to maximum mic input, not normal audio db)
I've sent it as RMA to the German Siglent service, but they were not able to reproduce it and sent me back the device.
Has anyone else had something like that?
Honestly this is not what I've expected from Siglent devices.